CamNtech Research Library

CamNtech products have been trusted by specialist researchers for over 25 years.

Our research library contains peer reviewed publications citing the use of our devices.

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Found 53 Results

Behavior Modeling Approach for Forecasting Physical Functioning of People with Multiple Sclerosis

Forecasting physical functioning of people with Multiple Sclerosis (MS) can inform timely clinical interventions and accurate “day planning” to improve their well-being. However, people’s physical functioning often remains unchecked in between infrequent clinical visits, leading to numerous negative healthcare outcomes. Existing Machine Learning (ML) models trained on in-situ data collected outside of clinical settings (e.g., […]

Related Product: PRO-Diary

Publication Date: March 28, 2023

An Interventional Response Phenotyping Study in Chronic Low Back Pain: Protocol for a Mechanistic Randomized Controlled Trial

Evidence-based treatments for chronic low back pain (cLBP) typically work well in only a fraction of patients, and at present there is little guidance regarding what treatment should be used in which patients. Our central hypothesis is that an interventional response phenotyping study can identify individuals with different underlying mechanisms for their pain who thus […]

Related Product: PRO-Diary

Publication Date: January 27, 2023

Coping as a Moderator of Associations Between Symptoms and Functional and Affective Outcomes in the Daily Lives of Individuals With Multiple Sclerosis

Background Pain and fatigue are highly prevalent in multiple sclerosis (MS) and are associated with adverse physical, social, and psychological outcomes. There is a critical need to identify modifiable factors that can reduce the impact of these symptoms on daily life. Purpose This study examined the moderating role of dispositional coping in the relationships between […]

Related Product: PRO-Diary

Publication Date: January 22, 2023

Mind wandering and sleep in daily life: A combined actigraphy and experience sampling study

Individuals who sleep poorly report spending more time mind wandering during the day. However, past research has relied on self-report measures of sleep or measured mind wandering during laboratory tasks, which prevents generalization to everyday contexts. We used ambulatory assessments to examine the relations between several features of sleep (duration, fragmentation, and disturbances) and mind […]

Related Product: PRO-Diary

Publication Date: December 2, 2022

Examining Individual Factors Influencing Adherence and Response to Wholegrains and Nuts in a Series of Interventional N-of-1 Studies

Objectives Inter-individual variations in response to dietary interventions are common, which can be affected by physiological and behavioural factors. N-of-1 studies, where a series of measurements are collected on an individual level over time, can provide insights into the factors which affect response for a single volunteer. The MI-DIET study is a series of N-of-1 […]

Related Product: PRO-Diary

Publication Date: June 14, 2022

The temporal relationships between defeat, entrapment and suicidal ideation: ecological momentary assessment study

Background Psychological models of suicidal experiences are largely based on cross-sectional or long-term prospective data with follow-up intervals typically greater than 1 year. Recent time-series analyses suggest that these models may not account for fluctuations in suicidal thinking that occur within a period of hours and/or days. Aims We explored whether previously posited causal relationships […]

Related Product: PRO-Diary

Publication Date: June 3, 2022

The association between sleep disturbance and suicidality in psychiatric inpatients transitioning to the community: protocol for an ecological momentary assessment study

Background: Patients are at high risk of suicidal behavior and death by suicide immediately following discharge from inpatient psychiatric hospitals. Furthermore, there is a high prevalence of sleep problems in inpatient settings, which is associated with worse outcomes following hospitalization. However, it is unknown whether poor sleep is associated with suicidality following initial hospital discharge. […]

Related Product: PRO-Diary

Publication Date: May 17, 2022

The contribution of latent factors of executive functioning to mind wandering: An experience sampling study

Accumulating evidence suggests that individuals with greater executive resources spend less time mind wandering. Independent strands of research further suggest that this association depends on concentration and a guilty-dysphoric daydreaming style. However, it remains unclear whether this association is specific to particular features of executive functioning or certain operationalizations of mind wandering, including task-unrelated thoughts […]

Related Product: PRO-Diary

Publication Date: March 28, 2022

Exploring light exposure of hospital nurses working rapidly rotating shifts in relation to sleepiness and sleep

Nightshift work can negatively impact sleep, performance, and health. Careful manipulation of light exposure patterns can help reduce these negative effects but is challenging in conditions of rapidly rotating shiftwork and due to individual differences. As chronotype is related to shiftwork tolerance, we explored patterns of sleep, sleepiness, and light exposure during the first day […]

Related Product: PRO-Diary

Publication Date: November 1, 2021

Exploring Symptom Fluctuations and Triggers in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Using Novel Patient-Centred N-of-1 Observational Designs: A Protocol for a Feasibility and Acceptability Study

Background Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic condition of unknown aetiology associated with a range of disabling symptoms, including post-exertional malaise, chronic fatigue, musculoskeletal pain, orthostatic intolerance, unrefreshing sleep, and cognitive dysfunction. ME/CFS is a heterogeneous disorder, with significant variation in symptom type and severity between individuals, as well as within individuals over […]

Related Product: PRO-Diary

Publication Date: August 9, 2021

Sleep, Circadian Rhythmicity and Response to Chronotherapy in University Students: Tips from Chronobiology Practicals

Chronobiology is not routinely taught to biology or medical students in most European countries. Here we present the results of the chronobiology practicals of a group of students of the University of Padova, with a view to highlight some interesting features of this group, and to share a potentially interesting cross-faculty teaching experience. Thirty-eight students […]

Related Product: PRO-Diary

Publication Date: January 21, 2021

The acute effects of sleep restriction therapy for insomnia on circadian timing and vigilance

Sleep‐restriction therapy (SRT) has been shown to improve insomnia symptoms by restricting sleep opportunity. Curtailment of time in bed affects the duration and consolidation of sleep, but also its timing. While recent work suggests that people with insomnia are characterised by misalignment between circadian and behavioural timing of sleep, no study has investigated if SRT […]

Related Product: PRO-Diary

Publication Date: December 13, 2020

Fatigue in patients with hereditary neuropathy with liability to pressure palsies

Objective Hereditary Neuropathy with Liability to Pressure Palsies (HNPP) is caused by a heterozygous deletion of peripheral myelin protein‐22 (PMP22) gene resulting in focal sensorimotor deficits. Our lab has identified a disruption of myelin junctions in excessively permeable myelin that impairs action potential propagation. This mechanism is expected to cause fatigue in patients with HNPP. […]

Related Product: PRO-Diary

Publication Date: July 28, 2020

Can Special Light Glasses Reduce Sleepiness and Improve Sleep of Nightshift Workers? A Placebo-Controlled Explorative Field Study

Nightshift workers go against the natural sleep–wake rhythm. Light can shift the circadian clock but can also induce acute alertness. This placebo-controlled exploratory field study examined the effectiveness of light glasses to improve alertness while reducing the sleep complaints of hospital nurses working nightshifts. In a crossover within-subjects design, 23 nurses participated, using treatment glasses […]

Related Product: PRO-Diary

Publication Date: May 29, 2020

Procrastination, Affective State, Rumination, and Sleep Quality: Investigating Reciprocal Effects with Ambulatory Assessment

Procrastination is a prevalent problem among university students and associated with high long-term costs, but the short-term antecedents and consequences of procrastination are not well understood. Some related negative outcomes could be consequences as well as predictors of procrastination. The aim of the present study was to investigate possible reciprocal associations of affective, cognitive and […]

Related Product: PRO-Diary

Publication Date: May 6, 2020

The relationship between sleep disturbance, symptoms and daytime functioning in psoriasis: a prospective study integrating actigraphy and experience sampling methodology

Objective/background Sleep disturbance is common in individuals with psoriasis and appears to be related to both physical and psychological factors. We sought to examine whether psoriasis symptoms, night-time arousal and low mood predicted subsequent objective and self-reported sleep; and whether objective and self-reported sleep predicted next-day psoriasis symptoms and day-time functioning. Participants/Methods A total of […]

Related Product: PRO-Diary

Publication Date: March 23, 2020

Analysing N-of-1 observational data in health psychology and behavioural medicine: a 10-step SPSS tutorial for beginners

Background: N-of-1 observational studies can be used to describe natural intra-individual changes in health-related behaviours or symptoms over time, to test behavioural theories and to develop highly personalised health interventions. To date, N-of-1 observational methods have been under-used in health psychology and behavioural medicine. One reason for this may be the perceived complexity of statistical […]

Related Product: PRO-Diary

Publication Date: January 1, 2020

Calling out MS fatigue: feasibility and preliminary effects of a pilot randomized telephone-delivered exercise intervention for multiple sclerosis fatigue

Fatigue is a common and debilitating symptom of multiple sclerosis (MS). Exercise therapy is effective in reducing MS-related fatigue; however, its feasibility, acceptability, and effectiveness when delivered over the telephone remain unknown. This randomized study aimed to determine the feasibility and acceptability of a telephone-delivered exercise intervention for MS-related fatigue. In addition, pre-/postchange in fatigue […]

Related Product: PRO-Diary

Publication Date: January 1, 2020

Development of an eating topography protocol and an investigation of its effects on body composition, appetite and mindfulness

Eating rate (ER) is part of the microstructure of meal ingestion and has been of increasing scientific interest due to manipulations being implicated in energy intake, appetite control and mindfulness. The current thesis aims to develop and test the slow eating rate (SER) protocol for use in overweight-free living adults and to investigate the protocol’s […]

Related Product: PRO-Diary

Publication Date: September 30, 2019

A randomized pragmatic trial of telephone-delivered cognitive behavioral-therapy, modafinil, and combination therapy of both for fatigue in multiple sclerosis

Background Fatigue is one of the most common and disabling chronic symptoms in multiple sclerosis (MS). Optimization of available treatments for MS-related fatigue has been stymied by lack of comparative effectiveness research that focuses on real-world treatment delivery methods and potential modification of treatment effect by other chronic MS symptoms or disability level. This report […]

Related Product: PRO-Diary

Publication Date: September 1, 2019

Tracking snacking in real time: Time to look at individualised patterns of behaviour

Background: Identifying when and where people overeat is important for intervention design, yet little is known about how unhealthy behaviours unfold in real life. Aim: To track the activities, social contexts and locations that co-occur with unhealthy snacking. Methods: Sixty-four adults (49F, mean age = 38.6 years) used electronic diaries to record snacking, location, social […]

Related Product: PRO-Diary

Publication Date: July 26, 2019

The development of ecological momentary interventions

See publication…

Related Product: PRO-Diary

Publication Date: January 25, 2019

Experience sampling in the study of sleep and wakefulness

See publication…

Related Product: PRO-Diary

Publication Date: January 25, 2019

Daily temporal associations between physical activity and symptoms in multiple sclerosis

Background:Symptom severity is negatively associated with physical activity in multiple sclerosis (MS). However, it is unclear how physical activity and symptoms correlate on a day-to-day basis in persons with MS. Purpose:To determine the temporal within-person associations of pain, fatigue, depressed mood, and perceived cognitive function with physical activity in MS. Methods:Ambulatory adults with MS (N […]

Related Product: PRO-Diary

Publication Date: January 20, 2019

Measuring Physical Activity in Spinal Cord Injury Using Wrist-Worn Accelerometers

OBJECTIVE. Our objective was to evaluate interunit agreement and construct validity of two activity monitors (Actiwatch Score and PRO-Diary) in people with and without spinal cord injury. METHOD. Thirty-eight participants (19 with spinal cord injury; 19 age- and sex-matched controls; mean age = 49 yr) wore both monitors and completed tasks during one visit ranging […]

Related Product: PRO-Diary

Publication Date: January 1, 2019

Factors that influence the rating of perceived exertion after endurance training

Purpose: Session rating of perceived exertion (sRPE) is an often-used measure to assess athletes’ training load (TL). However, little is known about which factors could optimize the quality of data collection thereof. The aim of this study was to investigate the effects of the survey methods and the time points when sRPE was assessed on […]

Related Product: PRO-Diary

Publication Date: September 1, 2018

The reliability of end of day and ecological momentary assessments of pain and pain interference in individuals with spinal cord injury

Purpose This study investigated the most efficient means of measuring pain intensity and pain interference comparing ecological momentary assessment (EMA) to end of day (EOD) data, with the highest level of measurement reliability as examined in individuals with spinal cord injury. Methods EMA (five times throughout the day) and EOD ratings of pain and pain […]

Related Product: PRO-Diary

Publication Date: August 2, 2018

Sham sleep feedback delivered via actigraphy biases daytime symptom reports in people with insomnia: Implications for insomnia disorder and wearable devices

This study investigated whether providing sham feedback about sleep to individuals with insomnia influenced daytime symptom reports, sleep‐related attentional bias and psychomotor vigilance. Sixty‐three participants meeting DSM‐5 criteria for insomnia disorder were recruited from the community. Following baseline assessments and actigraphy briefing, participants were randomised to receive next‐day sham feedback on sleep quality (“positive” vs. […]

Related Product: PRO-Diary

Publication Date: July 10, 2018

Combining actigraphy, ecological momentary assessment and neuroimaging to study apathy in patients with schizophrenia

Background Apathy can be defined as a reduction of goal-directed behavior and is a strong predictor for poor functional outcome in schizophrenia. However, no objective measure of apathy has been identified and assessment is limited to retrospective interview-based ratings. Here we aimed to identify more precise objective readouts of apathy for translational research and clinical […]

Related Product: PRO-Diary

Publication Date: May 1, 2018

Influence of Pre-Sleep Positive Affect on Next-Morning Energy

Introduction Objective measures of sleep quality do not fully explain variance in morning reports of feeling rested. What predicts this consequential difference? Sleep duration and quality, as well as chronotype, were documented to impact how energetic people feel in the morning. Very little is known about the impact of positive affect at night on morning […]

Related Product: PRO-Diary

Publication Date: April 27, 2018

Short sleep duration and poor sleep quality predict next-day suicidal ideation: an ecological momentary assessment study

Background. Sleep problems are a modifiable risk factor for suicidal thoughts and behaviors. Yet, sparse research has examined temporal relationships between sleep disturbance, suicidal ideation, and psychological factors implicated in suicide, such as entrapment. This is the first in-the-moment investigation of relationships between suicidal ideation, objective and subjective sleep parameters, and perceptions of entrapment. Methods. […]

Related Product: PRO-Diary

Publication Date: April 26, 2018

Changes in physical activity during the retirement transition: a series of novel n-of-1 natural experiments

Background Existing evidence about the impact of retirement on physical activity (PA) has primarily focused on the average change in PA level after retirement in group-based studies. It is unclear whether findings regarding the direction of PA change after retirement from group-based studies apply to individuals. This study aimed to explore changes in PA, PA […]

Related Product: PRO-Diary

Publication Date: December 8, 2017

Effects of Rate on Analgesia in Kilohertz Frequency Spinal Cord Stimulation: Results of the PROCO Randomized Controlled Trial

Objective: The PROCO RCT is a multicenter, double‐blind, crossover, randomized controlled trial (RCT) that investigated the effects of rate on analgesia in kilohertz frequency (1–10 kHz) spinal cord stimulation (SCS). Materials and Methods: Patients were implanted with SCS systems and underwent an eight‐week search to identify the best location (“sweet spot”) of stimulation at 10 […]

Related Product: PRO-Diary

Publication Date: December 8, 2017

Ecological momentary assessment of pain, fatigue, depressive, and cognitive symptoms reveals significant daily variability in multiple sclerosis

Objective To describe the daily variability and patterns of pain, fatigue, depressed mood, and cognitive function in persons with multiple sclerosis (MS). Design Repeated-measures observational study of 7 consecutive days of home monitoring, including ecological momentary assessment (EMA) of symptoms. Multilevel mixed models were used to analyze data. Setting General community. Participants Ambulatory adults (N=107) […]

Related Product: PRO-Diary

Publication Date: November 1, 2017

Pain, fatigue, and cognitive symptoms are temporally associated within but not across days in multiple sclerosis

Objective To examine the temporal associations, within-day and day-to-day, between pain, fatigue, depressed mood, and cognitive function in multiple sclerosis (MS). Design Repeated-measures study involving seven days of ecological momentary assessment (EMA) of symptoms five times a day. Multilevel mixed models were used to analyze data. Setting Community. Participants Ambulatory adults (N=107) with MS. Interventions […]

Related Product: PRO-Diary

Publication Date: July 18, 2017

How do pain, fatigue, depressive, and cognitive symptoms relate to well-being and social and physical functioning in the daily lives of individuals with multiple sclerosis?

Objective To examine the relative association between daily change in pain, fatigue, depressed mood, and cognitive function, and four outcomes (positive affect and well-being, ability to participate in social roles and activities, upper extremity (UE) functioning, and lower extremity (LE) functioning). Design Repeated-measures observational study including a baseline lab visit, followed by seven days of […]

Related Product: PRO-Diary

Publication Date: July 8, 2017

Pain acceptance decouples the momentary associations between pain, pain interference, and physical activity in the daily lives of people with chronic pain and spinal cord injury

Pain acceptance is a robust predictor of adjustment to chronic pain; however, the dynamics of pain acceptance in daily life are largely unexamined. Furthermore, research on pain acceptance in those with pain and physical disability is needed. To examine pain acceptance in daily life, we collected 7 days of ecological momentary assessments of pain intensity […]

Related Product: PRO-Diary

Publication Date: March 1, 2017

Are intensive data collection methods in pain research feasible in those with physical disability? A study in persons with chronic pain and spinal cord injury

Purpose Intensive repeated measures data collection procedures, such as ecological momentary assessment (EMA) and end-of-day (EOD) diaries, are becoming more prominent in pain research. Existing data on the feasibility of such methods is encouraging; however, almost nothing is known about feasibility in clinical populations with significant physical disabilities. Research methodology feasibility is crucial to the […]

Related Product: PRO-Diary

Publication Date: January 17, 2017

Using Ecological Momentary Assessment to Track Goal Progress Toward the Adoption of a Low Glycemic Index Diet Among Adults With Type 2 Diabetes: A Pilot Study

Goal setting is an integral component of nutritional counseling. Lower glycemic index (GI) diets can improve outcomes among adults with type 2 diabetes mellitus. Intraindividual variability in intake occurs during goal pursuit and could be captured through mobile ecological momentary assessment (EMA) to develop algorithms for personalized medical nutrition therapy. EMA assessed goal progress toward […]

Related Product: PRO-Diary

Publication Date: October 1, 2016

High resolution examination of the role of sleep disturbance in predicting functioning and psychotic symptoms in schizophrenia: A novel experience sampling study.

Sleep disturbance is common in schizophrenia, but its role in predicting functioning and psychotic symptoms has yet to be rigorously examined. The purpose of this study was to conduct a prospective, high-resolution examination of the relationship between nightly sleep and next-day functioning and psychotic symptoms in people with a diagnosis of schizophrenia. Experience sampling methodology […]

Related Product: PRO-Diary

Publication Date: August 1, 2016

Comparison between paper and electronic sleep diary

This study aimed to test the concurrent validity of an electronic version (to run on tablet) of a sleep diary derived from the core Consensus Sleep Diary compared with the traditional paper and pencil version. To this end, 15 healthy volunteers (6 males; mean age 37.20 ± 17.55 years) every morning, for at least 7 […]

Related Product: PRO-Diary

Publication Date: April 27, 2016

Subjective but not actigraphy-defined sleep predicts next-day fatigue in chronic fatigue syndrome: a prospective daily diary study

Study Objectives This study aimed to (1) examine the relationship between subjective and actigraphy-defined sleep, and next-day fatigue in chronic fatigue syndrome (CFS); and (2) investigate the potential mediating role of negative mood on this relationship. We also sought to examine the effect of presleep arousal on perceptions of sleep. Methods Twenty-seven adults meeting the […]

Related Product: PRO-Diary

Publication Date: April 1, 2016

Estimating cut points: A simple method for new wearables

Wearable technology is readily available for continuous assessment due to a growing number of commercial devices with increased data capture capabilities. However, many commercial devices fail to support suitable parameters (cut points) derived from the literature to help quantify physical activity (PA) due to differences in manufacturing. A simple metric to estimate cut points for […]

Related Product: PRO-Diary

Publication Date: January 1, 2016

Validation of capturing sleep diary data via a wrist-worn device

Paper sleep diaries are the gold standard for assessment of sleep continuity variables in clinical practice as well as research. Unfortunately, paper diaries can be filled out weekly instead of daily, lost, illegible or destroyed; and are considered out of date according to the newer technology savvy generations. In this study, we assessed the reliability […]

Related Product: PRO-Diary

Publication Date: November 23, 2015

Understanding patterns of young children’s physical activity after school—it’s all about context: a cross-sectional study

Background: To promote healthy lifestyles, we need to understand more about the patterns of children’s activities after school. Methods: Twenty 5- to 7-year-old children and their parents participated in this study. Parents used ‘real-time’ diaries to report children’s activities and contextual information at 3 randomly selected times per day, over 4 week days. Reporting was […]

Related Product: PRO-Diary

Publication Date: March 1, 2015

The SNAPSHOT study protocol: SNAcking, physical activity, self-regulation, and heart rate over time

The cognitive processes responsible for effortful behavioural regulation are known as the executive functions, and are implicated in several factors associated with behaviour control, including focussing on tasks, resisting temptations, planning future actions, and inhibiting prepotent responses. Similar to muscles, the executive functions become fatigued following intensive use (e.g. stressful situations, when tired or busy, […]

Related Product: PRO-Diary

Publication Date: September 26, 2014

The effect of eating rate on satiety in healthy and overweight people–A pilot study

Background & aims Eating rate has gained the attention of scientific research due to its potential association with obesity and its co-morbidities, though evidence of its effects on satiety is limited. This study aimed to assess if eating rate affects postprandial satiety, in seven healthy and seven overweight/obese subjects. Methods Participants were randomised to a […]

Related Product: PRO-Diary

Publication Date: April 1, 2014

Agreement between paper and pen visual analogue scales and a wristwatch-based electronic appetite rating system (PRO-Diary©), for continuous monitoring of free-living subjective appetite sensations in 7–10 year old children

Electronic capture of free-living subjective appetite data can provide a more reliable alternative to traditional pen and paper visual analogue scales (P&P VAS), whilst reducing researcher workload. Consequently, the aim of this study was to explore the agreement between P&P VAS and a wristwatch-based electronic appetite rating system known as the PRO-Diary © technique, for […]

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Publication Date: June 14, 2013

Variation in the effects of three different breakfast meals on subjective satiety and subsequent intake of energy at lunch and evening meal. European journal of nutrition.

Purpose To determine the relative impact of three iso-caloric breakfast meals, of variable composition, on satiety, hunger and subsequent intake of energy. Methods In a three-way, crossover design, 30 healthy men (age of 21.7 ± 1.2 years; BMI, 23.1 ± 2.7 kg/m2) were randomised to one of three test breakfasts, on three separate occasions, separated […]

Related Product: PRO-Diary

Publication Date: June 1, 2013

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